Trains, aircraft, models, walking, beer, travel

Load control governs the speed of the loco regardless of hills or the weight of the train. The decoder will deliver more voltage to the motor if it notices the load on the motor increase.

CV60 is the re-adjustment factor. Basically, it is the degree of the re-adjustment to a change in load. If this value is too high the re-adjustment will be too much and the loco will become jerky. Default 2. (I would suggest any changes are made very gradually)

CV61 is the frequency that CV60 makes an adjustment. The default value is 60. An XLS decoder can make 4000 adjustment a second. Divide 4000 by the CV setting = number of adjustment per second.

CV62 is a slightly tricky one. In simple terms this CV can limit the maximum voltage sent to the motor. This could be used to limit the top speed of a loco or to reduce the upper end speed (under load). This can be used to good effect because all real locos are limited in their power output. Also, this could be used to protect a motor that has a maximum voltage that is less than your central station output. Value 255 is no limits, Value 1 - 254 is fast to slow limitation. Default 255.

CV63 controls the load control at low speeds. It desensitises load control at lower (slower) speed steps to help with shunting etc. where an automated change in speed may not be wanted. The default is 60. The maths to calculate what is happening is complex and that's all I am saying!

If you are double heading it may be necessary to switch load control off because the push/pull of the second loco can confuse the decoder and the voltage output changes dramatically making the locos buck against each other.

stockers

Trains, aircraft, models, walking, beer, travel

CV124. Value 0 = No special function. F7 is purely an on/off switch. Value 1 = RC servo operation with two end positions with on or off. Value +4 = Inverse servo operation (if supported by servo) Value +8 = The control signal to the servo is switched off after motion.

CV125. Servo lower end position of movement. Default 16 Range 5-50

CV126. Servo upper end position of movement. Default 32 Range 5-50

CV127. Servo turning velocity. Default 1 Range 1-15 (1 is fastest)

These controls are also dependent on the servo being able to understand them.

Grumpy old man

Registered

An additional value of 16 to CV57 will link F2 with F1 for alternating flashing of lights. An additional value of 16 to CV116 will link F4 with F3 for alternating flashing lights. An additional value of 16 to CV120 will link F6 with F5 for alternating flashing lights. An additional value of 30 to CV114 will give an electrical pulse simulation for pulsed smoke generators in the absence of a sensor. (Not for use with axle sensors - follow the instructions with your sensor) An additional value of 31 to CV116 gives control of charging for a power buffer in programming mode. (Power buffers interfere with programming) F4 can be used to turn off the charging. Check with your power buffer documentation - I have never done anything in this area so you are on your own.

idlemarvel

Registered

There are many booklets g.o.m. it depends what you want to know. Not wishing to avoid the question, DCC is a broad topic, there are many books written about it. If you could be more specific we can probably help. For example, do you want to know the configuration variables (CVs) for a particular decoder? Do you want to know how to program a decoder with a specific command/central station setup? Etc.

RH Prague

Central European. the station pub is Czech !!

Morning all. As a beginner in digital I was reading in another thread about using a CV to check on which chip is in a loco. That is something I would like to do. However this thread does not, as far as I can tell, explain to a complete beginner how you access CVs - any CVs. Is it possible to get a quick tutorial here from someone? From the standpoint of someone who has his Massoth Navigator in his hand, but thus far has only used the keyboard buttons for basic configuration and activating sounds?

I thank you in advance!

PhilP

G Scale, 7/8th's, Electronics

I will allow someone with a Navigator in front of them to answer the specific question..

However, Post 12, and other mentions of CV 7... Never mention reading the value that is in it, and it is quite fundamental really.. The value returned when you read CV 7 will give you the manufacturer of the decoder. So for a LGB/Massoth decoder , you will get '123' when you read the value of CV7.

stockers

Trains, aircraft, models, walking, beer, travel

Morning all. As a beginner in digital I was reading in another thread about using a CV to check on which chip is in a loco. That is something I would like to do. However this thread does not, as far as I can tell, explain to a complete beginner how you access CVs - any CVs. Is it possible to get a quick tutorial here from someone? From the standpoint of someone who has his Massoth Navigator in his hand, but thus far has only used the keyboard buttons for basic configuration and activating sounds?

John S

Registered

Morning all. As a beginner in digital I was reading in another thread about using a CV to check on which chip is in a loco. That is something I would like to do. However this thread does not, as far as I can tell, explain to a complete beginner how you access CVs - any CVs. Is it possible to get a quick tutorial here from someone? From the standpoint of someone who has his Massoth Navigator in his hand, but thus far has only used the keyboard buttons for basic configuration and activating sounds?

I’m in France at the moment, somewhere on a post that I answerd for slawman I did start to explain the fundamentals, hopefully a kind sole back home in Blighty can find it at send a link to RH Prague, thanks.

idlemarvel

Registered

I will allow someone with a Navigator in front of them to answer the specific question..

However, Post 12, and other mentions of CV 7... Never mention reading the value that is in it, and it is quite fundamental really.. The value returned when you read CV 7 will give you the manufacturer of the decoder. So for a LGB/Massoth decoder , you will get '123' when you read the value of CV7.

Alpineandy

Registered

I have just spent last 2 hours programming a newly fitted xl decoder an I walks in, turns on my puter and sees this.............................. Could ave programmed it in 10 mins.....................c'est la bl**dy vie..................

idlemarvel

Registered

I have just spent last 2 hours programming a newly fitted xl decoder an I walks in, turns on my puter and sees this.............................. Could ave programmed it in 10 mins.....................c'est la bl**dy vie..................

LGB333

Member

Following various threads on this esteemed forum I will start the dummies guide to digital. This thread deals with CVs only and Massoth only. I am sure most of the information can cross over to other makes but lets keep it simple. This thread is about CVs, for Massoth - not about HOW to change them or WHAT KIT to use. Hopefully, other threads will deal with that. It is based on the XLS decoder but I think most of it is relevant to all Massoth decoders. Please note, other manufacturers use some CVs differently. This thread WILL BE HEAVILY MODERATED to keep it as clear and simple as practical, it may also get locked from time to time. Please feel free to add you 2 pennys worth but don't be disappointed when it is plagiarised or just deleted. Also - I can make mistakes!

It has been suggested that I indicate the voltage levels associated with various CV values, also the degree of effect that a change would have. A laudable idea but to be honest I don't have much of a clue. I do all my adjustments by trial and error or by copying something similar. What I would say is, remember the original settings and go slowly - a small change can make a marked difference.

+++++++++++++++++++ Stockers - Very nice job.......you put a lot of time and effort into these postings. I've been a DCC/Digital system user now for almost four years after having used DC/Analog for 27 years........love it now. My first Central Station Piko, made by Massoth, and now also the Massoth Central Station. I've reset several of my Massoth decoders with no problems. Folks should also remember that if a Massoth decoder becomes defective, you can ship it back to the Massoth folks in Germany for free repair or replacement under their 12 month warranty coverage. I did so with one of mine and they fixed it and shipped it back to me within 30 days. Shipping such a small item is cheap using USPS First Class Package International. One caution I'd like to also warn people about is programming a Massoth decoder, or probably any decoder, in a locomotive that also contains another function decoder installed, such as a Phoenix sound unit. I recently installed Massoth eMotion XL power decoders into a person's LGB F7A and F7B Diesel units and also his furnished Phoenix unit. I programmed the Phoenix unit separately from the Massoth unit using the Phoenix PC Software. But the owner then tried to change the address on the Massoth units using his NCE DCC system but didn't disconnect the locomotive's power to the Phoenix decoder and messed up both the Massoth decoder in the F7A unit, but then also the Phoenix unit. Tom